This problem is so bad that there is no answer to it on YouTube. It is so bad I had to buy a new computer with Windows 10 , then had to buy a new printer because there is no printer driver for Windows 10.
The problem is that when I open a worksheet in my computer I can not edit it. It is not protected because the same worksheet will open on my new computer and i can edit it. The computer is 99% perfect but useless because I can not use Excel on it.
Who knows the answer to this problem?